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53 lines
1.2 KiB
Bash
Executable File
53 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# Treats the arguments as a command that is to be forked and observed;
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# e.g.,
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#
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# watch.sh ./mozilla -f bloaturls.txt
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#
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# Periodically snap-shots the virtual memory info of the process, and
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# dumps the output to ``watch.out''
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# Clear the output file
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OUTPUT_FILE=watch.out
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INTERVAL=10
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while [ $# -gt 0 ]; do
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case "$1" in
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-o) OUTPUT_FILE=$2
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shift 2
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;;
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-i) INTERVAL=$2
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shift 2
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;;
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*) break
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;;
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esac
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done
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rm -f ${OUTPUT_FILE}
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echo "vmsize vmexe vmlib vmdata vmstk vmrss" > ${OUTPUT_FILE}
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# treat the arguments as the command to execute
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$* &
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# remember the process ID
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PID=$!
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while [ -e /proc/${PID} ]; do
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cat /proc/${PID}/status |\
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awk '$1=="VmSize:" { vmsize = $2; }
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$1=="VmData:" { vmdata = $2; }
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$1=="VmStk:" { vmstk = $2; }
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$1=="VmExe:" { vmexe = $2; }
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$1=="VmLib:" { vmlib = $2; }
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$1=="VmRSS:" { vmrss = $2; }
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END { print vmsize, vmexe, vmlib, vmdata, vmstk, vmrss; }' >> ${OUTPUT_FILE}
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sleep ${INTERVAL}
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done
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